Need Advice: Breastfeeding with 3 older (13+) stepson's

I am about 3 months pregnant and I have 4 stepson's (one away at
college) ages: 13, 13, 16 and 18. The boys reside with my husband and
I on a full-time basis. I have a good relationship with all of the
boys and they were actually quite excited when we told them that we
were going to have a baby (something we've been talking about since we
got married in 2003).

Anyhow, I was hoping that someone out there can offer me some advice
about breastfeeding with older children, specifically boys, around. My
husband isn't entirely supportive of it 'cause he thinks that
breastfeeding is an inconvenience. But I've been reading up and I told
him last night that I want to at least try breastfeeding because I feel
that the benefits highly outweigh the inconveniences. The only thing I
am really worried about is how to talk to the boys about it and/or if I
should consider not breastfeeding for the sake of their comfort because
I am afraid that they might feel weird about it. Of course, those of
you that have teenage boys know how they can be sometimes with sexual
type issues.

I feel like it's a natural thing though and I want to explain to them
the reasons why it's so important that I breastfeed. Of course, I
wouldn't be hanging out exposing myself everywhere but just the same I
want to be considerate of their feelings and am worried there's no real
way to balance the issue.

Any help or advice, especially from someone who may have experience
with a similar situation, is appreciated.